function show(layer)
{
	if (document.getElementById)
	{
	// this is the way the standards work
	var style2 = document.getElementById(layer).style;
	style2.display = "block";			
	}
	else if (document.all)
	{
	// this is the way old msie versions work
	var style2 = document.all[layer].style;
	style2.display = "block";
	}
	else if (document.layers)
	{
	// this is the way nn4 works
	var style2 = document.layers[layer].style;
	style2.display = "block";
	}
} 
function hide(layer)
{	
	if (document.getElementById)
	{
	// this is the way the standards work
	var style2 = document.getElementById(layer).style;
	style2.display = "none";	
	}
	else if (document.all)
	{
	// this is the way old msie versions work
	var style2 = document.all[layer].style;
	style2.display = "none";
	}
	else if (document.layers)
	{
	// this is the way nn4 works
	var style2 = document.layers[layer].style;
	style2.display = "none";
	}
}